Head-Fier

Hi, i would like to buy a new pair of headphones, i already have a pair of westone um3x and sennheiser hd25 for portable, and a pair of hd598 for home, now i want a closed headphone to use at home, i need something to feel an upgrade from hd598, i usually listen to electonic music, but 80% of that is vocal trance music, so vocals shouldnt be reccesed, or not so much, i want something with more bass quantity than hd598.
i have read a lot of things, and i have found some headphones which should be good like ultrasone pro900 and denon d2000, but i have read that both have recessed mids, so i dont know.
I dont have a good amp, i only have a soundmagic a10, which i think is not going to pair with that headphones and my source is a cowon s9 and a sony a828
please help me choosing a headphones under 400$! The only important thing for me is sound quality, isolation and all other things are not important for me.
thanks and regards

Head-Fier

Thanks for your advice, something that im considering is to buy a nice headphone amp, which should improve my hd598, but i dont understand what amp should i buy, i see some ibasso but i dont know if they are worth it.
So do you think that d2000 and pro900 vocals are still good for vocal trance?
For example i have a pair of shure srh750dj too, and for me they have recessed mids, are the mids of d2000 and pro900 more recessed?
thanks a lot

Headphoneus Supremus

Sennheiser HD-598 (50-Ohm) usually sound decent without a headphone amplifier and do not improve greatly with headphone amplifiers,
but a headphone amplifier would bring out their best.
Around $100 would be as much as you would want to spend on a headphone amplifier for the HD-598.